CN1265395C - Flash memory and its program planning and reprogramming method - Google Patents
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Abstract
Description
技术领域technical field
本发明是关于一种闪存及其程序规划和重复烧录的方法，尤指一种闪存及在闪存规划出程序进入点矩阵后再在闪存中重复烧录程序的方法。The present invention relates to a flash memory and a method for program planning and repeated programming thereof, in particular to a flash memory and a method for repeatedly programming a program in the flash memory after planning a program entry point matrix in the flash memory.
背景技术Background technique
闪存是大多数手持设备用来储存操作系统的一种内存。闪存亦用于移动电话、数字像机、LAN转换器、PC卡、机顶盒和内嵌式控制器等。闪存在烧录时一次写入一整块区块，速度比一次写入一个字节的EEPROM快。新式的计算机使用闪存作为储存BIOS的组件，使BIOS可由一般使用者作更新，而不必使用特殊的烧录器(Burner)。Flash memory is a type of memory that most handheld devices use to store the operating system. Flash memory is also used in mobile phones, digital cameras, LAN converters, PC cards, set-top boxes, and embedded controllers. Flash memory writes an entire block at a time during programming, which is faster than EEPROM that writes one byte at a time. Modern computers use flash memory as a component for storing the BIOS, so that the BIOS can be updated by ordinary users without using a special burner (Burner).
随着MMI(人机接口)应用及需求的日益广泛，软件的复杂度及长度也随着增加，尤其是软件的分工及整合更是明确，对一位软件工程师来说，某一部分程序修改后，必须经由编译器将所有程序重新再编译，因此新的程序代码往往都是牵一发而动全身。With the increasing application and demand of MMI (man-machine interface), the complexity and length of software also increase, especially the division of labor and integration of software is more clear. For a software engineer, after a certain part of the program is modified , All programs must be recompiled by the compiler, so new program codes often affect the whole body.
如图1所示，一个完整的手机软件，是从上层的应用程序(如MMI应用程序)到下层部分固定程序(如：驱动程序、通讯协议程序、操作系统、字型、图文件、影像文件等)所分工完成的，当工程师修改部分应用程序时，其大部分固定程序往往是不需要变动或更改，惟有两者间需要联系时，会因为应用程序中的回呼函数经过部分修改后而改变了其起始地址，如图2所示，固定程序区块中的一程序A要联系的应用程序A’，其回呼函数经过部分修改后而改变起始地址。此时必须经由编译器将所有程序重新编译且烧录一次。从而，固定程序才能够呼叫到应用程序中的回呼程序而不会造成系统运作的不正常。但结果是，耗费了整个烧录时间，而且过程繁琐，增加研发成本。As shown in Figure 1, a complete mobile phone software is from the upper application program (such as MMI application program) to the lower part of the fixed program (such as: driver program, communication protocol program, operating system, font, image file, image file etc.), when engineers modify part of the application program, most of the fixed programs often do not need to be changed or changed, only when the two need to be linked, it will be because the callback function in the application program has been partially modified Its initial address is changed, as shown in FIG. 2 , the application program A' to be contacted by a program A in the fixed program block, its callback function is partially modified to change the initial address. At this time, all programs must be recompiled and burned once through a compiler. Therefore, the fixed program can call the callback program in the application program without causing abnormal operation of the system. But the result is that the entire burning time is consumed, and the process is cumbersome, which increases the cost of research and development.
发明内容Contents of the invention
本发明的闪存及其程序规划和重复烧录的方法，主要是在一手机软件烧录过程中，将程序进入点矩阵的概念加入到手机软件架构中，当固定程序区块中的程序需要呼叫到应用程序区块中的回呼函数时，只须进入点矩阵便可通过对照表找到回呼函数的起始地址。The method for flash memory and its program planning and repeated burning of the present invention is mainly to add the concept of program entry point matrix into the mobile phone software architecture during the burning process of a mobile phone software. When the program in the fixed program block needs to call When going to the callback function in the application program block, you only need to enter the dot matrix to find the starting address of the callback function through the comparison table.
因此，本发明的主要目的是提供一种闪存及其程序规划和重复烧录的方法，当被修改的应用程序被编译后，只需烧录回呼函数进入点区块以及应用程序点区块的程序代码即可，而固定程序区块的程序代码并不需要再重新烧录，如此可节省整个烧录时间。Therefore, the main purpose of the present invention is to provide a method for flash memory and its program planning and repeated programming. After the modified application program is compiled, only the callback function entry point block and the application program point block are burned. The program code of the fixed program block does not need to be reprogrammed, which can save the entire programming time.
本发明的又一目的是提供一种闪存及其程序规划和重复烧录的方法，就程序设计而言，将成熟且完整的程序放在内存中的固定程序区块而将正在开发或必须再维护修改部分的程序放在应用程序区块，只需将其起始地址加入到进入点矩阵，如此重复烧录过程中便可再度提升烧录的效率，也同时减少维护程序的时间。Another object of the present invention is to provide a method for flash memory and its program planning and repeated programming. As far as program design is concerned, a mature and complete program is placed in a fixed program block in the internal memory and will be under development or must be reprogrammed. The program for maintenance and modification is placed in the application program block, and its start address is only needed to be added to the entry point matrix, so that the programming efficiency can be improved again during the repeated programming process, and the time for maintaining the program can also be reduced.
根据本发明的一个方面，提供了一种闪存，通过内存的规划将该内存分成三部分，该三部分为：一固定程序区块，其中包含烧录完整且不需再修改的程序；一应用程序区块，其中包含可修改或变更的应用程序；以及一回呼函数进入点区块，其中包含一回呼函数进入点矩阵，该进入点矩阵记录在该应用程序区块内的所有回呼函数当被固定程序呼叫时的起始地址值。According to one aspect of the present invention, a kind of flash memory is provided, and the memory is divided into three parts through memory planning, and the three parts are: a fixed program block, which contains a program that is completely programmed and does not need to be modified; an application a program block, which contains the application program which can be modified or changed; and a callback function entry point block, which contains a callback function entry point matrix, which records all the callback functions in the application program block The starting address value of the function when it is called by the fixed procedure.
根据本发明的另一方面，提供一种闪存中固定程序呼叫回呼函数的方法，其中该闪存通过内存的规划将该内存分成三部分，该三部分包括一固定程序区块，其中包含烧录完整且不需再修改的程序；一应用程序区块，其中包含可修改或变更的应用程序；以及一回呼函数进入点区块，其中包含一回呼函数进入点矩阵，该进入点矩阵记录在该应用程序区块内的所有回呼函数当被固定程序呼叫时的起始地址值，该方法包括有以下步骤：a)当该固定程序区块中的一程序呼叫该应用程序区块中的回呼函数时，先到该回呼函数进入点区块寻找该回呼函数在一回呼函数对照表的一起始地址值；b)再进入在该应用程序区块的该回呼程序的一闪存起始地址。According to another aspect of the present invention, a method for calling a callback function by a fixed program in a flash memory is provided, wherein the flash memory is divided into three parts through memory planning, and the three parts include a fixed program block, which includes programming A complete program that does not need to be modified; an application program block, which contains the application program that can be modified or changed; and a callback function entry point block, which contains a callback function entry point matrix, and the entry point matrix records The initial address values of all callback functions in the application program block when called by the fixed program, the method includes the following steps: a) when a program in the fixed program block calls the application program block When the callback function, first go to the callback function entry point block to find a starting address value of the callback function in a callback function comparison table; b) then enter the callback program in the application program block A starting address of the flash memory.
根据本发明的再一方面，提供了一种闪存程序重复烧录方法，其中该闪存通过内存的规划将该内存分成三部分，该三部分包括一固定程序区块，其中包含烧录完整且不需再修改的程序；一应用程序区块，其中包含可修改或变更的应用程序；以及一回呼函数进入点区块，其中包含一回呼函数进入点矩阵，该进入点矩阵记录在该应用程序区块内的所有回呼函数当被固定程序呼叫时的起始地址值，该方法包括有步骤：将修改的一应用程序进行编译；b)将编译后的应用程序烧录在所述闪存的应用程序区块和回呼函数进入点区块中。According to yet another aspect of the present invention, a method for repeatedly programming flash memory programs is provided, wherein the flash memory is divided into three parts through memory planning. The program that needs to be modified again; an application program block, which contains the application program that can be modified or changed; and a callback function entry point block, which contains a callback function entry point matrix, and the entry point matrix is recorded in the application The initial address values of all callback functions in the program block when called by the fixed program, the method includes the steps of: compiling a modified application program; b) burning the compiled application program in the flash memory The application block and callback function of the entry point block.
较佳地，在步骤b)中，只需烧录该回呼函数进入点区块和该应用程序区块的程序代码。Preferably, in step b), it is only necessary to burn the program codes of the callback function entry point block and the application program block.
根据本发明的再另一方面，提供了一种闪存的规划方法，主要是包含如下步骤：a)将一闪存分成三部分：一固定程序区块，一应用程序区块和一回呼函数进入点区块；b)将成熟且完整的程序放在该固定程序区块；c)将正在开发或必须再维护修改部分的程序放在该应用程序区块；以及d)将回呼函数的起始地址加入到该回呼函数进入点区块的一进入点矩阵。According to still another aspect of the present invention, a kind of planning method of flash memory is provided, mainly comprises the following steps: a) a flash memory is divided into three parts: a fixed program block, an application program block and a callback function entry point block; b) put the mature and complete program in the fixed program block; c) put the program under development or need to maintain the modified part in the application block; and d) put the call-back function start The origin address is added to an entry point matrix of the callback function entry point block.
附图简述Brief description of the drawings
本发明的这些目的和其它目的、特点和优点通过以下说明配合附图对本领域的熟练技术人员将更清晰明了。These objects and other objects, features and advantages of the present invention will be more clearly understood by those skilled in the art through the following description with accompanying drawings.
图1是常规手机软件架构示意图；FIG. 1 is a schematic diagram of a conventional mobile phone software architecture;
图2是已知闪存经编译器编译新修改后的程序架构变化示意图；Fig. 2 is a schematic diagram of the change of the program structure of the known flash memory after being compiled by the compiler;
图3是依照本发明一实施例的内存规划示意图；FIG. 3 is a schematic diagram of memory planning according to an embodiment of the present invention;
图4是依照本发明一实施例的程序进入点矩阵中程序呼叫时的动作示意图；以及FIG. 4 is a schematic diagram of actions when a program is called in a program entry point matrix according to an embodiment of the present invention; and
图5是依照本发明的一实施例的程序重新编译前后，固定程序呼叫回呼函数的动作示意图。FIG. 5 is a schematic diagram of the fixed program calling a callback function before and after the program is recompiled according to an embodiment of the present invention.
具体实施方式Detailed ways
首先，请参阅图3。图3是依照本发明一实施例的内存规划示意图。由图中可知一内存被规划成三部分：固定程序区块、回呼函数进入点区块和应用程序区块，固定程序区块是存有烧录完整且不需再修改的程序，如操作系统、通讯协议、驱动程序和字型、影像、图形文件等。应用程序区块储存有需要修改或变更的应用程序(MMI)。回呼函数进入点区块则是一回呼函数进入点矩阵，此矩阵纪录了所有回呼函数的起始地址。当一回呼函数被固定程序呼叫时即是通过其起始地址进行。First, see Figure 3. FIG. 3 is a schematic diagram of memory planning according to an embodiment of the present invention. It can be seen from the figure that a memory is divided into three parts: fixed program block, callback function entry point block and application program block. System, communication protocol, driver and font, image, graphic file, etc. The application program block stores the application programs (MMI) that need to be modified or changed. The callback function entry point block is a callback function entry point matrix, which records the starting addresses of all callback functions. When a callback function is called by the fixed program, it is through its starting address.
再请参阅图4，当固定程序区块中的一固定程序A或B呼叫应用程序区块中的回呼函数A”或B”时，要分别先到回呼函数进入点区块寻找一回呼函数对照表的起始地址值A’或B’后，再进入应用程序区块中回呼函数A”或B”以完成下层固定程序呼叫的动作。因而，不管应用程序如何修改，经编译器编译后，应用程序中的回呼函数起始地址都将纪录在回呼函数进入点区块的进入点矩阵。当下层固定程序呼叫上层回呼程序时只需到此进入点矩阵便可通过对照表找出上层回呼函数的起始地址。Referring to Fig. 4 again, when a fixed program A or B in the fixed program block calls the callback function A" or B" in the application program block, it is necessary to go to the callback function entry point block to find a return respectively After calling the initial address value A' or B' of the function comparison table, enter the callback function A" or B" in the application program block to complete the action of the lower layer fixed program call. Therefore, no matter how the application program is modified, after being compiled by the compiler, the starting address of the callback function in the application program will be recorded in the entry point matrix of the callback function entry point block. When the lower-layer fixed program calls the upper-layer callback program, it is only necessary to enter the dot matrix here to find out the starting address of the upper-layer callback function through the comparison table.
最后，请参阅图5。本图是依照本发明程序重新编译前后，固定程序呼叫回呼函数的动作示意图。依照本发明，如图上代表回呼函数A”的方块的移位，当一应用程序被修改并经编译后，固定程序区块中的一固定程序A所要呼叫的应用程序区块中的一回呼函数A”会变更起始地址，而起始地址值A’亦随之改变。但是，固定程序A尚保持在原地址。所以，在此情形下，当一工程师修改应用程序并编译后，只需要烧录回呼函数进入点区块以及应用程序区块的程序代码便可，而固定程序区块的程序代码并不需要再重新烧录，如此可省下烧录固定程序区块的时间部分。Finally, see Figure 5. This figure is a schematic diagram of the action of the fixed program calling the callback function before and after the program is recompiled according to the present invention. According to the present invention, as shown in the figure representing the shift of the block of the callback function A", when an application program is modified and compiled, one of the application program blocks to be called by a fixed program A in the fixed program block The callback function A" will change the initial address, and the initial address value A' will also change accordingly. However, fixed program A remains at the original address. Therefore, in this case, when an engineer modifies the application program and compiles it, he only needs to burn the program code of the callback function entry point block and the application program block, while the program code of the fixed program block does not need Then burn again, so that the time for burning fixed program blocks can be saved.
由以上的叙述，以程序设计的观点而言，若将成熟且完整的程序放在内存中的固定程序区块，而将正在开发或必须再维护修改部分的程序放在应用程序区块。当固定程序区块中的程序需要呼叫到应用程序区块中的回呼函数时，只需将其起始地址值加入到点矩阵，如此重复烧录过程便可再度提升烧录的效率，也同时减少维护程序的时间。From the above description, from the point of view of program design, if the mature and complete program is placed in the fixed program block in the memory, the program that is under development or needs to be maintained and modified is placed in the application program block. When the program in the fixed program block needs to call the callback function in the application program block, it only needs to add its start address value to the dot matrix, so that the burning process can be repeated to improve the burning efficiency again. At the same time reduce the time for maintenance procedures.
本发明的闪存程序重复烧录方法，用在一手机软件烧录过程中实施时，将程序进入点矩阵加入到手机软件架构中，经过实际烧录测试，结果显示所需烧录时间将只为原架构烧录时间的十分之一。The method for repeatedly burning flash memory programs of the present invention is implemented in a mobile phone software burning process. The program entry point matrix is added to the mobile phone software framework. After the actual burning test, the result shows that the required burning time will be only One-tenth of the burning time of the original architecture.
以上所述的内容，仅为本发明的一较佳实施例而已，并非用来限定本发明实施的范围。故即凡依本发明的权利要求所述的形状、构造、特征所作出的等效变化与修饰，均应包括于本发明的保护范围内。The content described above is only a preferred embodiment of the present invention, and is not intended to limit the implementation scope of the present invention. Therefore, all equivalent changes and modifications made in accordance with the shapes, structures, and features described in the claims of the present invention shall be included in the protection scope of the present invention.
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